ima: free securityfs violations file

On ima_fs_init() error, free securityfs violations file.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>

security/integrity/ima/ima_fs.c

@@ -367,6 +367,7 @@ int __init ima_fs_init(void)
 
 	return 0;
 out:
+	securityfs_remove(violations);
 	securityfs_remove(runtime_measurements_count);
 	securityfs_remove(ascii_runtime_measurements);
 	securityfs_remove(binary_runtime_measurements);